Driving mechanism for wrapping machines and the like



Ma 22,1928. 1,670,939 I G. W. PROUTY' DRIVING MECHANISM FOR WRAPPINGMACHINES AND THE LIKE Original Filed June 21, 192 5 Sheets-Sheet l Amwy? May 22, 1928. 1,670,939

G. W. PROUTY DRIVING MECHANISM FOR WRAPPING MACHINES AND THE LIKEOriginal ied June 21. 1921 5 Sheets-Sheet 2 TT RN Y'I G. W- PROUTYDRIVING MECHANISM FOR WRAPPING MACHINES AND THE LIKE Original F le ne21- 192i 3 SheetsSheet 5 Patented May 22, 1928 UNITED STATESPATENTT'OFFICE.

'GEO RGEW'. IPROU-TY, OF ROSLINDALE, MASSACHUSETTS, ASSIGNOR TOTERKELSEN MAGHINE COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OFMASSA- cnusnrrs.

; DRIVING MECHANISM'FOR WRAPPING MACHINES AND THE LIKE.

. origlnal application filed June 21, 1921, Serial No. 479,410, and inGreat Britain february 5, 1924.

Divided and this application filed May .19, 1925. Serial No. 31,882. i

. This invention has for its object to provide improved means forapplying, and for controlling the application of the power of acontinuously running electric or other motor to mechanism intermittentlydriven thereby. While capable of many other uses, the invention isparticularly applicable to machines I for Wrapping annular objects (suchas automobile tires, coils of wire, etc.)

of the type disclosed in my Letters Patent No. 1,542,474 issued June 16,1925, of which this caseis a division. I g I The more particular objectsof the invention,- togetherwith means whereby the same may be carriedinto effect, will best be understood from the following description ofone form or, embodiment thereof illustrated inthe accompanying drawings.It will be understood, however, that the particular construction andarrangement described and'shown has been chosen for illustrativepurposes merely, and that the invention, as defined by the claimshereunto appended, may be otherwise practised withoutdeparture from itsspirit and scope.

v In said drawings;

Fig.1 is a front elevation of the complete machine. i

1 'Fig. 2- is a side elevation, looking from the right in Fig. 1.

F 3 isa section taken substantially on theline 3+3, Fig. 1. 7 7

The frame'of the machine herein shown comprises a base 15 and a yoke 16,which pivotally mounted on a shaft '17, journalled in an upright 18rising from the base 15. The yoke 16;i s providedwith guide rollers 19for an annular shuttle 20', which is'rotated by a driving memberintheform of a friction disk 21 secured to the shaft 17' and driventhrough connections hereinafter morefully'described from an electricmotor 23. The tire or other work W to be wrapped is held by aweightedjroll'er 14 upon work'supporting rollers 24 which are driventhough suitable connections from the driving member 21, the arrangementbeing such that the work W will be turned relatively slowly with respectto the speed of rotation of the shuttle 20. Said shuttle is formed witha hinged segment 26 normally closing a gap through which the Work W maybe inserted, while the yoke 16 may be adjusted about the axis of theshaft 17 to center the shuttle 20 with respect to annular objects ofdifferent sizes, said yoke being counterbalanced by a spring 27 andbeing locked in adjusted position by means of a clamp 28 carried by anupright29 rising from the base 15. g

The-wrapping material, preferably in the form of a continuousstrip S ofpaper, is supplied from a roll 30 supported by a reel or spindle 31carried by the yoke 16. Said. paper passes from the roll 30 over a guideplate 34 to the shuttle 20 which is provided with an annular fiange35about which the strip S is wrapped as the shuttle is rotated and fromwhich said strip is led to the work l/V. Between the shuttle and thesource of supply 30, there is provided a cutting mechanism comprising aknife 37 cooperating with a portion of the guide plate 34 to sever thestrip S, when a sufficient length thereof has been wound around theshuttle flange 35 to complete the wrapping of the work W. The knife 37is automatically actuated, after a predetermined number of'rotations ofthe shuttle, by a counting mechanism 38 actuated at each rotationofsaidshuttle by a cam projection 39 thereon, said counting mechanismbeing manually adjustable in accordance with the size of the articleswrapped. V

' From-the foregoing, the nature, location, and function of the partsreferred to. will be sufliciently.underst'oodfor the purposes of thepresent case. With the exception of those hereinafter described, and inso far as the others enter into combination therewith, as pointed out inthe claims, these parts are not involved in the present invention andmaybe of any suitable construction and arrangement. v

The disk or driving member 21 is driven by frictional engagementtherewith of a friction wheel 40 on the shaft 41 of the motor 23. Thesaid motor is carried by a frame 42 which normally rests by gravity onthe top of the base 15, in which position the friction wheel is out ofengagement with the driving member or disk 21. In order to connect theseparts to start the machine, the frame 42 and the motor 28 are'moved orlifted bodily so as to bring said wheel 40 into engagement with the disk21. To this end the following connections are provided:

The base 15 has secured thereto a plate 43 having depending ears 44which extend downwardly through an opening in the top of said base.Journalled in the cars 44 is a shaft 45 having secured thereto arms 46,the opposite ends of which are pivoted at 47 to depending ears 48 formedon the motor frame 42; Between the lower ends of the depending ears 44and 48 are link connections 49 forming, with the arms 4i; and ears 44'and 48, a parallel link motion, whereby when the shaft 45 is oscillateda vertical movement is imparted to the motor frame 42 substantially in astraight line. The shaft 45 has secured thereto a third arm 50, which,with said shaft and the arms 46 thereon, constitutes a lifting lever forthe motor, The forward end of the lever 50 is connected by links 51 withthe lower end of a starting or actuating lever 52 pivoted at 53 andhaving at its upper end a handle 54 by which saidactuating levermay bemoved about its pivot 53 to cause the motor 23 to be lifted until thefriction wheel 40 is brought into frictional engagement with the drivingwheel 21, thereby causing the rotation of the shaft 17. The arms 46 and50 and the shaft 45 form, in effect, a bell crank lever pivotedintermediate its ends, it being obvious that the longer arm 50 of thelever might be in alinement with the shorter arms 46 but is offsettherefrom as shown in the drawings, for convenience in operating themachine.

As shown in the drawings, the motor 23 is in raised position with thefriction wheel 40 thereof contacting with the driving wheel 21, and thelinks 51 are in alineinent with the actuatinglever 52, therebypreventing thelowering of said motor 23 and thus causing the machinetobe operated until the handle 54 is moved to the right in Fig. 3 of thedrawings, thus breaking the toggle connection 51, 52 and permitting themotor 23 to return to its normal lowered position i i by gravity.

The pivot 58 for the actuating lever 52 is eccentrically mounted in the'bearing 55 and has secured to one end thereof a. quadrant 56 having aslot 5'7 therein through which a clamping bolt 58 is adapted to extendinto the bearing 55 to lock the eccentric pivot 53 in adjusted position.

By means of this construction the pivot for the actuating lever 52 maybe nicely adjusted so that in the lifting of the motor 28 the alinementof the actuating lever 52 and the toggle links 51 will be assured as bedriven, said mechanism havinga driving member, ofa motor, a frictionwheelcarried. thereby and normally removed from said driving member, anarm pivoted intermedi- .ate its ends and having one end pivotallyconnected to the supporting frame of said motor, a pivoted actuatinglever, anda toggle link connecting said actuating lever with theopposite end of said arm. c

2. The combination with mechanism to be driven, said mechanism having arevoluble" driving member, of a motor, a revoluble friction wheelcarried thereby and fnormally removed from said driving member, an armpivoted intermediate its ends and having one end pivotallyconnected tothe supporting frame of said motor, a pivoted actuating lever connectedto the opopsite end of said arm, and means wherebythe position of thelever pivot may be adjusted.

The combination with mechanism to be driven, said mechanism having arevoluble driving member, of a motor, a revoluble friction Wheel carriedthereby and normally removed from said driving member, an arm pivotedintermediate its ends and'having one end pivotally connected to thesupporting frame of said motor, a pivoted actuating lever connected tothe opposite end of said arm, and means for insuring the parallelism ofthe several positions of the axis" of the motor while being lifted.

4. The combination with mechanism to be driven, said mechanism having arevoluble driving member, of a motor, a revoluble friction wheel carriedthereby and normally removed from said driving membelyan arm pivotedintermediate its ends and having one end pivotally connected to thesupporting frame of said motor to lift the same and cause saidfrictionwheel to engage said driving member, and a link mechanism forinsuring the parallelism of the several posi-. tions of the axis of themotor While being lifted. I v

5. The combination with mechanism to be Hill driven, said mechanismhavinga revoluble driving member, of a motor, a revoluble fricadjustingthe position of the lever pivot, a slotted quadrant on said eccentric,and a clamping bolt cooperating with said quad- 10 rant: to lock saideccentric.

In testimony whereof I aflix my signature.

GEORGE W. PROUTY.

